HydroResearch最新文献

{"title":"Morphological changes in the offshore islands of Meghna estuary: Analysis of the erosion and accretion dynamics","authors":"Fariha Khatun,&nbsp;Ovi Ranjan Saha,&nbsp;Naila Matin","doi":"10.1016/j.hydres.2024.12.006","DOIUrl":"10.1016/j.hydres.2024.12.006","url":null,"abstract":"<div><div>This study examines the morphological changes of ten offshore islands in the Meghna estuary of Bangladesh over thirty years, from 1989 to 2019, utilizing remote sensing and Geographic Information System (GIS) techniques. The study area, characterized by ever-changing hydrodynamic conditions due to the substantial discharge from the Ganges, Jamuna, and Meghna rivers, experiences significant sediment deposition and erosion. Our findings highlight a complex interplay between erosion and accretion processes across the estuary. Despite 1100 km² of land being eroded, accretion processes were slightly more predominant, totaling 1210 km², resulting in a net increase of 110 km² in land area. Notably, islands like Swarna Dwip and Moulovi Char exhibited substantial land gains, while Manpura and the eastern part of Bhola experienced significant reductions, underlining the urgent need for targeted erosion mitigation strategies. The study also identifies significant sediment deposition near tidal confluence zones around Sandwip, Jahazer Char, and Urir Char, suggesting that these are key areas for conservation efforts. The research contributes valuable insights into the geomorphological dynamics within the Meghna estuary. It offers foundational knowledge for informed coastal management and sustainable development planning in one of the world's most dynamically evolving coastal environments.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 294-306"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A geospatial assessment of the resilience of municipal water supply to flooding in Nowshera District, Pakistan","authors":"Muhammad Tufail ,&nbsp;Muhammad Jamal Nasir ,&nbsp;Atta-ur Rahman ,&nbsp;Syed Ihtisham Kakakhel ,&nbsp;Aqil Tariq","doi":"10.1016/j.hydres.2024.09.009","DOIUrl":"10.1016/j.hydres.2024.09.009","url":null,"abstract":"<div><div>Post-disaster functionality of the potable water supply infrastructure is crucial for maintaining public health and safety. The failure of the water supply system may harm inhabitants and significant users, which can impact other services and various types of infrastructures. It is vital to assess climate change impacts on water resources to ensure resilience and sustainable management. The study assessed the resilience of 22 municipal water schemes using an indicator-based framework, How Tough is Wash (HTIW), across six domains: environment, infrastructure, community governance, water supply management, supply chains, and institutional support. The sites of municipal water supply were purposively selected based on specific criteria to include those water supply schemes which have been directly affected by flooding or are vulnerable to the impact of the flood. The resilience scores ranged from (6 to 7.5) for schemes with very low resilience, (7.5 to 10.5) for those classified as poor, and (10.6 to 16.5) for schemes considered moderately resilient. It was discovered that protective measures against the risk of flood were negligible. Community engagement governance and water supply management needed to be stronger. Local governments can pinpoint current advantages and disadvantages by utilizing these metrics and their impact on the public water supply's resilience and strategically allocate resources for optimal outcomes. Furthermore, the metrics that have been suggested simplify and unify the multiple dimensions of the elements, enabling decision-makers to optimize the measures.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 89-98"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing watershed vulnerability to erosion and sedimentation: Integrating DEM and LULC data in Guyana's diverse landscapes","authors":"Josephine Kawa Maximus","doi":"10.1016/j.hydres.2024.11.002","DOIUrl":"10.1016/j.hydres.2024.11.002","url":null,"abstract":"<div><div>This study assesses watershed vulnerability to erosion and sedimentation in Guyana using Digital Elevation Model (DEM) and Land Use/Land Cover (LULC) classification. It aims to assess erosion risk by examining rainfall erosivity, soil types, and spatial variability. The integration of DEM-derived slope data with LULC and rainfall erosivity shows a strong correlation between high rainfall (20,809.02–31,262.35 mm) and erosivity (21,433.29–32,200.22 MJ mm ha⁻¹ h⁻¹ yr⁻¹), indicating increased erosion potential, particularly in southwestern regions. Soil analysis reveals Plinthic Acrisols, with high clay content, are more prone to erosion, whereas Orthic Ferralsols are less vulnerable. Slope analysis suggests flat terrain (89.16 %) has low erosion risk, but steeper slopes require interventions. Conservation strategies like reforestation, sustainable agriculture, contour plowing, and terracing are recommended to reduce erosion impacts. This integrated assessment provides insights for prioritizing soil conservation and adaptive management to address erosion risks in Guyana.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 178-193"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the annual effective dose and lifetime cancer risks associated with tritium in groundwater within different age groups","authors":"Al Mamun","doi":"10.1016/j.hydres.2024.09.004","DOIUrl":"10.1016/j.hydres.2024.09.004","url":null,"abstract":"<div><p>Tritium is a radioactive isotope of hydrogen that emits low-energy radiation. When humans are exposed to tritium, the primary concern is internal exposure through inhalation, ingestion, or absorption through the skin. The severity of the adverse health effects depends on the duration, amount, and route of exposure. Therefore, estimating the tritium levels in groundwater and the corresponding health risks within different age groups is essential. The annual effective dose is determined by considering several factors, including the concentration of tritium, the volume of water consumed, and the duration of exposure. The calculated annual effective doses were then compared to the safety limit as directed by international organizations. The estimated tritium concentration in the searched groundwater samples was significantly low, ranging from 0.014 to 0.114 Bq/L. The annual effective dose of tritium exposure for infants, children, and adults varies from 0.028 to 0.605 μSv/y and is within the safe limit recommended by the World Health Organization (WHO) and other international organizations. The lifetime cancer risk (LTCR) for the consumer in the searched areas was estimated for males and females based on the average lifetime. Mortality and morbidity rates varied slightly between males and females across samples due to differences in activity concentrations and locations. However, the estimated LTCR values were below the radiological cancer risk limit. These findings will provide valuable insights to regulatory authorities, assisting them in developing strategies to ensure public safety against human exposure to tritium.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 41-48"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S258975782400026X/pdfft?md5=f2268ef3164ef704c979bae6015edd94&pid=1-s2.0-S258975782400026X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142244107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogeochemical characterization and human health risks associated with groundwater nitrate concentrations in the Saiss basin, Morocco","authors":"Abdelhakim Lahjouj ,&nbsp;Abdellah El Hmaidi ,&nbsp;Hafid Achtak ,&nbsp;Chafik Nakhcha ,&nbsp;Karima Bouhafa","doi":"10.1016/j.hydres.2024.11.006","DOIUrl":"10.1016/j.hydres.2024.11.006","url":null,"abstract":"<div><div>Groundwater has been facing not only prolonged climate change-induced groundwater shortage but also severe deterioration of groundwater quality from natural and/or anthropogenic sources. This study aims to determine the hydrogeochemical processes controlling groundwater chemistry in the Saiss basin, Morocco, and to assess seasonal changes in groundwater quality using the entropy-weighted water quality index (EWQI). In addition, human health risks associated with groundwater nitrate (NO₃⁻) contamination/pollution were investigated using the hazard quotient (HQ). Groundwater chemistry in the Saiss basin was mainly controlled by mineral dissolution/precipitation and direct cation exchange, with slight seasonal variations in the saturation indices (SIs). The EWQI suggested slight groundwater quality deterioration in the dry season due to increased NO₃⁻ concentrations. In fact, children were over two times exposed to non-carcinogenic issues associated with groundwater NO₃⁻ concentrations when compared with adults. The current study provides further insights into the hydrogeochemical characteristics of groundwater to ensure safe regional water supplies.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 223-236"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pollution indicators and human health risk assessment of fluoride contaminated drinking groundwater in southern Pakistan","authors":"Shakeel Ahmed Talpur ,&nbsp;Muhammad Rashad ,&nbsp;Aziz Ahmed ,&nbsp;Gianluigi Rosatelli ,&nbsp;Muhammad Yousuf Jat Baloch ,&nbsp;Aqib Hassan Ali Khan ,&nbsp;Hafeez Ahmed Talpur ,&nbsp;Javed Iqbal","doi":"10.1016/j.hydres.2024.10.005","DOIUrl":"10.1016/j.hydres.2024.10.005","url":null,"abstract":"<div><div>This study investigated fluoride contamination in groundwater and associated health risks in the Badin district of Pakistan. Fifty-seven groundwater samples were analyzed for fluoride, turbidity, iron, and total dissolved solids (TDS). Pollution indices and health risk models were employed to assess contamination levels and potential health impacts. Results showed that 47 % of samples exceeded the WHO fluoride limit of 1.5 mg/L, with a mean concentration of 1.92 mg/L. Spatial analysis revealed high contamination in northern and southern areas. Health risk assessments indicated that children, particularly females, faced the highest risk of fluorosis. TDS, turbidity, and iron levels also exceeded WHO limits in significant portions of the samples. This investigation uniquely combines multiple pollution indicators, spatial analysis, and age-specific health risk assessments, presenting vibrant insights for targeted interventions, policy development, and resource allocation to address this critical public health issue in fluoride-endemic regions.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 167-177"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current status of stream water quality around selected Tea Gardens from Southern Western Ghats, Tamil Nadu, India – A case study","authors":"Eswaran Rangasamy PhD (Research Scholar),&nbsp;Muniasamy Muniyandi (Assistant Professor)","doi":"10.1016/j.hydres.2024.01.002","DOIUrl":"10.1016/j.hydres.2024.01.002","url":null,"abstract":"<div><p>In this study, metal concentration in tea garden-associated stream water samples from the south Western Ghats of Tamil Nadu was evaluated using ICP-MS to know the current status of pollution level, sources of pollution, probable water quality, and impacts of heavy metals. Stream water pollution of hill regions communities using the heavy metal pollution index, principal compound analysis, and Pearson correlation analysis were measured. In addition, for this purpose, water phy-chem parameters were also measured, such as (pH, temperature, conductivity, salinity, and TDS) using a pH meter. PO4 and F- UV-spectrophotometer, Na, K, and calcium (flame photo meter), NO3- NO3-N (Electronic method-horiba), and turbidity meter to evaluate the stream-water quality were used, and heavy metals, particularly Al, As, Cd, Fe, Cr, Cu, Zn, Pb, Ni, and Mn are analyzed as heavy metal pollutions. The phy-chem average values of pH, Temp, EC, Tds, Salinity, alkalinity, cod, bod, do, chloride, calcium, C. hardness, M. hardness, T. hardness, N-Nitrogen, Phosphate, Potassium, Sodium, Turbidity, Fluoride, Sulphate, and Sulphur are found 8.13, 27.57 °C, 218, 111.67, 78.67, 70.39, 2029, 5.70, 3.83, 70.83, 737, 62.30, 166.11, 679, 1132, 149, 11, 28.33, 4.44, 07, 178, 180 respectively. Heavy metal concentrations, including aluminum, arsenic, cadmium, iron, chromium, copper, zinc, lead, nickel, and manganese, are detected at 32, 7.2, 6.24, 96.4, 0.00, 0.00, 40, 0.00, 0.00, 30 μg/L, respectively. Concentrations of studied heavy metals, particularly, Mn, Ni, Cd, and Fe, have measurements that are greater than the permissible standard limits of BIS, WHO.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"7 ","pages":"Pages 99-108"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757824000027/pdfft?md5=76499adb61dc31ce379ce8c172643025&pid=1-s2.0-S2589757824000027-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139540537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regression model optimization using least square algorithms for streamflow data transposition in tropical humid Water Basin","authors":"Benjamin Nnamdi Ekwueme","doi":"10.1016/j.hydres.2024.04.005","DOIUrl":"https://doi.org/10.1016/j.hydres.2024.04.005","url":null,"abstract":"<div><p>Several projects are under consideration within the Anambra-Imo River Basin (AIRB). However, the location of these projects differs from established gauging stations, necessitating transposition of hydrological information for ungauged sites. This study investigates the transposability of maximum monthly stream records using regression models, employing neighboring stream records as predictors. Ten-year records of five rivers (Adada, Ajali, Otanmiri, Imo, and Ivo Rivers) were deployed to predict one another using a simple regression with five trends (linear, quadratic, cubic, logarithmic, and power). A metric based on compromise programming reveal that Imo records best predict Adada (<span><math><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.636</mn></math></span>), Ajali (<span><math><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.777</mn></math></span>), and Ivo (<span><math><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.403</mn></math></span>) records, while Ajali and Ivo records are the best predictors of Imo (<span><math><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.703</mn></math></span>) and Otanmiri (<span><math><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.349</mn></math></span>) records, respectively. Linear trends appear to capture relationships among neighboring rivers most effectively. Lack of correlation among neighboring rivers, despite sharing the same basin, suggests that transposition models are catchment-specific and do not support regionalization.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"7 ","pages":"Pages 257-271"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757824000155/pdfft?md5=79370b62f08ef1717c833846aae3b502&pid=1-s2.0-S2589757824000155-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140824361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the water quality of Vatadahosahalli Lake in Chikkaballapura district, Karnataka, India","authors":"Kavitha Kapani ,&nbsp;Nagabhushan V. Charantimath ,&nbsp;Pavan Chikkanarayanaswamy ,&nbsp;Uday Jayaramaiah","doi":"10.1016/j.hydres.2024.06.001","DOIUrl":"10.1016/j.hydres.2024.06.001","url":null,"abstract":"<div><p>Freshwater lakes, crucial for the country's economy, play diverse roles in supporting industrial, agricultural, and ecological processes. Despite their significance, rising human activities globally, including in India, are degrading water quality, posing threats to biodiversity and human health. In this study, water quality parameters such as temperature, turbidity, electrical conductivity (EC), total dissolved solids (TDS), total hardness (TH), pH, dissolved oxygen (DO), biological oxygen demand (BOD), and chemical oxygen demand (COD), nitrate (NO₃⁻), phosphate (PO₄³⁻), lead (Pb), arsenic (As), mercury (Hg), and cadmium (Cd) were investigated at Vatadahosahalli Lake in 2022. The data were analyzed using descriptive statistics and Parsons's correlation matrix, and drinking suitability was accessed by the Water Quality Index (WQI). Parameters like turbidity, BOD, COD, and metals exhibited significant seasonal fluctuations, impacting overall water quality and analysis of these water quality parameters revealed that the water is polluted by various anthropogenic activities. The Water Quality Index was used to condense these parameters into a single interpretable value. Results indicated significant seasonal fluctuations, with the winter season presenting ‘poor’ water conditions and the monsoon and post-monsoon seasons presenting ‘good’ water conditions, while the summer season presents the most concerning water quality. At site ‘A', the water was categorized as ‘unsuitable’, with the reaming sites ‘B' and ‘C', being classified as ‘poor’ and ‘good’, respectively. The study emphasizes the importance of monitoring and implementing strategic measures for the preservation and sustainable management of Vatadahosahalli Lake. This research also provides valuable insights for policymakers and local communities, enabling them to take informed actions to protect this vital freshwater resource.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"7 ","pages":"Pages 326-336"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757824000209/pdfft?md5=0f4664051a50ac40b8313154728eb1ba&pid=1-s2.0-S2589757824000209-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contaminant transport modelling of the vulnerability of aquifer to cyanide from cassava processing mill in the western Niger Delta","authors":"Oghenero Ohwoghere-Asuma ,&nbsp;Felix Iwebunor Chinyem ,&nbsp;Prince Atiti ,&nbsp;Duke Ophori","doi":"10.1016/j.hydres.2024.02.001","DOIUrl":"https://doi.org/10.1016/j.hydres.2024.02.001","url":null,"abstract":"<div><p>The threat to groundwater by toxic wastewater in the vicinity of cassava processing mills has not been taken seriously in the Niger delta region. Consequently, the fate of cyanide from the surficial surface into underlying aquifers was modelled by MODFLOW and MT3DMS. The vulnerability is influenced by subsurface geology, vertical hydraulic conductivity and sorptive characteristics of the unsaturated zones, seasonal recharge and depth to water levels. The migration of cyanide is considerably not different from the direction of groundwater flow. Its migration is significantly affected by the geology and constituents of the unsaturated zones which retard the spread of cyanide plume into the underlying aquifers. The study has successfully demonstrated the effectiveness of MODFLOW and MT3DMS in determining the vulnerability of aquifers to cassava wastewater from processing mills and associated contaminants. The pumped-and- treat technique is specifically suggested for the remediation of cyanide contaminated aquifers characterized by high hydraulic conductivity.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"7 ","pages":"Pages 154-163"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757824000064/pdfft?md5=4ddb76dd82d4e96e0122fd8934c1d776&pid=1-s2.0-S2589757824000064-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140013997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}